Python _winapi.CreatePipe() Examples

The following are 4 code examples of _winapi.CreatePipe(). You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may also want to check out all available functions/classes of the module _winapi , or try the search function .
Example #1
Source File: popen_spawn_win32.py    From Fluid-Designer with GNU General Public License v3.0 5 votes vote down vote up 
def __init__(self, process_obj):
        prep_data = spawn.get_preparation_data(process_obj._name)

        # read end of pipe will be "stolen" by the child process
        # -- see spawn_main() in spawn.py.
        rhandle, whandle = _winapi.CreatePipe(None, 0)
        wfd = msvcrt.open_osfhandle(whandle, 0)
        cmd = spawn.get_command_line(parent_pid=os.getpid(),
                                     pipe_handle=rhandle)
        cmd = ' '.join('"%s"' % x for x in cmd)

        with open(wfd, 'wb', closefd=True) as to_child:
            # start process
            try:
                hp, ht, pid, tid = _winapi.CreateProcess(
                    spawn.get_executable(), cmd,
                    None, None, False, 0, None, None, None)
                _winapi.CloseHandle(ht)
            except:
                _winapi.CloseHandle(rhandle)
                raise

            # set attributes of self
            self.pid = pid
            self.returncode = None
            self._handle = hp
            self.sentinel = int(hp)
            util.Finalize(self, _winapi.CloseHandle, (self.sentinel,))

            # send information to child
            context.set_spawning_popen(self)
            try:
                reduction.dump(prep_data, to_child)
                reduction.dump(process_obj, to_child)
            finally:
                context.set_spawning_popen(None)
Example #2
Source File: popen_spawn_win32.py    From Imogen with MIT License 5 votes vote down vote up 
def __init__(self, process_obj):
        prep_data = spawn.get_preparation_data(process_obj._name)

        # read end of pipe will be "stolen" by the child process
        # -- see spawn_main() in spawn.py.
        rhandle, whandle = _winapi.CreatePipe(None, 0)
        wfd = msvcrt.open_osfhandle(whandle, 0)
        cmd = spawn.get_command_line(parent_pid=os.getpid(),
                                     pipe_handle=rhandle)
        cmd = ' '.join('"%s"' % x for x in cmd)

        with open(wfd, 'wb', closefd=True) as to_child:
            # start process
            try:
                hp, ht, pid, tid = _winapi.CreateProcess(
                    spawn.get_executable(), cmd,
                    None, None, False, 0, None, None, None)
                _winapi.CloseHandle(ht)
            except:
                _winapi.CloseHandle(rhandle)
                raise

            # set attributes of self
            self.pid = pid
            self.returncode = None
            self._handle = hp
            self.sentinel = int(hp)
            self.finalizer = util.Finalize(self, _winapi.CloseHandle, (self.sentinel,))

            # send information to child
            set_spawning_popen(self)
            try:
                reduction.dump(prep_data, to_child)
                reduction.dump(process_obj, to_child)
            finally:
                set_spawning_popen(None)
Example #3
Source File: popen_spawn_win32.py    From ironpython3 with Apache License 2.0 5 votes vote down vote up 
def __init__(self, process_obj):
        prep_data = spawn.get_preparation_data(process_obj._name)

        # read end of pipe will be "stolen" by the child process
        # -- see spawn_main() in spawn.py.
        rhandle, whandle = _winapi.CreatePipe(None, 0)
        wfd = msvcrt.open_osfhandle(whandle, 0)
        cmd = spawn.get_command_line(parent_pid=os.getpid(),
                                     pipe_handle=rhandle)
        cmd = ' '.join('"%s"' % x for x in cmd)

        with open(wfd, 'wb', closefd=True) as to_child:
            # start process
            try:
                hp, ht, pid, tid = _winapi.CreateProcess(
                    spawn.get_executable(), cmd,
                    None, None, False, 0, None, None, None)
                _winapi.CloseHandle(ht)
            except:
                _winapi.CloseHandle(rhandle)
                raise

            # set attributes of self
            self.pid = pid
            self.returncode = None
            self._handle = hp
            self.sentinel = int(hp)
            util.Finalize(self, _winapi.CloseHandle, (self.sentinel,))

            # send information to child
            context.set_spawning_popen(self)
            try:
                reduction.dump(prep_data, to_child)
                reduction.dump(process_obj, to_child)
            finally:
                context.set_spawning_popen(None)
Example #4
Source File: popen_spawn_win32.py    From Project-New-Reign---Nemesis-Main with GNU General Public License v3.0 5 votes vote down vote up 
def __init__(self, process_obj):
        prep_data = spawn.get_preparation_data(process_obj._name)

        # read end of pipe will be "stolen" by the child process
        # -- see spawn_main() in spawn.py.
        rhandle, whandle = _winapi.CreatePipe(None, 0)
        wfd = msvcrt.open_osfhandle(whandle, 0)
        cmd = spawn.get_command_line(parent_pid=os.getpid(),
                                     pipe_handle=rhandle)
        cmd = ' '.join('"%s"' % x for x in cmd)

        with open(wfd, 'wb', closefd=True) as to_child:
            # start process
            try:
                hp, ht, pid, tid = _winapi.CreateProcess(
                    spawn.get_executable(), cmd,
                    None, None, False, 0, None, None, None)
                _winapi.CloseHandle(ht)
            except:
                _winapi.CloseHandle(rhandle)
                raise

            # set attributes of self
            self.pid = pid
            self.returncode = None
            self._handle = hp
            self.sentinel = int(hp)
            util.Finalize(self, _winapi.CloseHandle, (self.sentinel,))

            # send information to child
            context.set_spawning_popen(self)
            try:
                reduction.dump(prep_data, to_child)
                reduction.dump(process_obj, to_child)
            finally:
                context.set_spawning_popen(None)